Hi there! As far as I know, i'm not sure so correct me if i'm wrong, I don't have any idea for the top8 or something since we only have 4 Groups when I started playing in my server and now, currently we only have 2 groups competing .. And for the reward, for what i know is, each Group made through the finals will get 10pcs of Group Gift Packs, 3 Legendary. 4 Hero and 3 Elite Packs ..